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St. Helen, Michigan

Community in Roscommon County, Michigan

Air quality

The air at St. Helen

Index 19, good, led by ozone. Read at 12 AM from its reporting area, Northcentral-Northeast Lower (MI), 28 miles off.

19Good
  • Fine particles (PM2.5)3Good-
  • Ozone19Good19 ppb23.6 mi
  • Nitrogen dioxide1Good1.2 ppb23.6 mi

The days ahead

Good each day through Today, led by ozone. Yesterday measured 23, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at St. Helen

0.80 in in the last 24 hours, 1.45 in over the last 3 days, to Fri 12 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.80in
Last 3 days
1.45in

Visibility

How far you can see at St. Helen, the next 44 hours

Dense fog: visibility falls to 0.1 miles Fri 3 AM, under a mile for 4 hours.

FriSat

On the radar over St. Helen, MichiganReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest St. Helen, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 6.9 miles away.

measured now3 instruments

Roscommon RAWSRSCM4

A remote fire weather station/11.1 mi away/1,148 ft/57 ft below here

temp, wind, gust, humidity, pressure

Rank592of 979

Houghton LakeHTL

At an airfield/12.6 mi away/1,152 ft/53 ft below here

temp, wind, gust, visibility, precip, pressure

Rank18of 979

measured daily2 instruments

West Branch 3.9 NNEMI-OG-4

In a volunteer observer's own ground/11.1 mi away/1,123 ft/82 ft below here

precip, snowfall, snow depth

Rank-

West BranchWBRM4

At a cooperative observer's station/13.0 mi away/889 ft/316 ft below here

snowfall, snow depth, precip, high, low

Rank100of 979

Station report

The weather at Houghton Lake, drawn

The nearest airport reporting now, 12.6 mi from St. Helen, Michigan. From its report of Oct 16, 2026, 12:53 AM local time: 3 of its 6 sheets.

The sky

Broken at 500 ft, broken at 2,200 ft, overcast at 3,100 ft; the ceiling is 500 ft; visibility 10 mi or more.

Section of the sky over Houghton Lake, height above the station to scale: broken cloud with its base at 500 feet, broken cloud with its base at 2,200 feet, overcast cloud with its base at 3,100 feet, the ceiling at 500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HTLFIG. A THE SKY OVER HOUGHTON LAKESECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 3,100 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 2,200 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYBKN 500 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEHoughton Lake, the skySTATION REPORT · ASOS HTLTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-HTL-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

50.0 F with a dew point of 49.0 F, 96 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 200 ft up; the lowest cloud reported is at 500 ft.

Chart of the air at Houghton Lake: temperature 50.0 degrees Fahrenheit and dew point 49.0, 96 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 200 feet above the station, against the lowest cloud reported at 500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HTLFIG. B THE AIR AT HOUGHTON LAKETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 FSATURATES 200 FT ABOVE THE STATION, AT 48.7 FLOWEST CLOUD REPORTED, BKN 500 FTTEMPERATURE AND DEW POINT 50.0 F, 49.0 FRELATIVE HUMIDITY 96 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLEHoughton Lake, the airSTATION REPORT · ASOS HTLTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-HTL-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east (90 degrees) at 8 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Houghton Lake, north up: blowing from 90 degrees, the east, at 8 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HTLFIG. C THE WIND AT HOUGHTON LAKEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 90°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEHoughton Lake, the windSTATION REPORT · ASOS HTLTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-HTL-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Houghton Lake, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at West Branch (WBRM4), 13.0 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in Michigan

66 places, each with its own forecast and its own instruments.

Near St. Helen

The nearest places, each with its own forecast and the instruments nearest it.

Near St. Helen

River and lake gauges